Spring surface bolt



1,632,832 June 21, 1927. .5 GOLD SPRING SURFACE BOLT Filed July e, 1925(/2 I y- IMMINMHMIII 11 INVENTOR, Samzze Z Z6 Patented June 21, 19 27.

UNITED STATES,

SAMUEL GOLD, OF LOS ANGELES, CALIFORNIA.

SPRING- SURFACE BOLT.

Application filed July 6,

This invention relates to surface bolts and especially to spring boltsof this class.

An object of the invention is to provide a very simple, low-cost, yetpractical, durable and effective bolt.

another object is to provide a spring surface belt of few parts andwhich are selflocking in assembly.

Other objects and advantages will be made manifest in the followingspecification of the embodiment of the invention here illustrated; itbeing understood that modifications, variations and adaptations may beresorted to within the spirit, scope and principle of the invention asis here claimed.

Figure 1 is a front elevation of the device.

Figure 2 is an edge view; the sliding bar being broken away.

Figure 8 is a rear face view.

Figure 4 is a longitudinal sectional view of the plate, showing thespring as applied. Figure 5 is a front view of the spring.

Figure 6 is an edge view of the bar; this being partly in section.

The device includes a stiff back frame or plate 2 having screw holes 3and forwardly stamped bridges 4, on one face, to receive a stiffbolt-bar 5 having at one end a finger button 6.

It is desirable to provide a strong spring element by which tofrictionally and also positively secure the bar 5 in its guide bridgesl. To that end I provide the plate 2 with a narrow cross-slot 8 and awindow 9 and a bow spring 10 having one end ,hooked back at 11 to matchin the slot 8.

The opposite end of the spring 10 has a cross-corrugation l2 reverse tothe bow and fitting loosely in the window 9. The free end 13 of thespring rides on the cross-web 2 of the plate. The ridge or crown of thebow spring has a horn 14 projecting outward and which is adapted tospring into cross-recess 5 in the rear, flat face of the bar 5.

In assembling the parts the spring 10 is placed on the plate with thehook end 11111 the slot 8. Then the bar 5 is pushed under the bridge anearest the slot and is then pushed along the bow of the spring, de-

1926. Serial No. 120,725.

pressing it, until the leading end of the bolt bar passes fully underthe second bridge and until the latching horn 14 snaps into the barrecess 5. The bar can thereafter be pushed along until the button 6steps against the near bridge a, at which time the far end of the barwill project be yond the end of the plate 2.

Back pull of the bar 5 will be stopped when the recess 5 registers withthe horn and this latter snaps outward into the recess and against itsshoulder 5 It will be seen, therefore, that the bar is irremovable andis always under spring pressure outward from the face of the plate 2 andso cannot rattle or work loose.

The bottom of the recess 5 is so inclined as to allow the bolt bar 5toreadily repress the horn is and the spring 10 when the bolt bar isprojected.

It will be seen that the spring is interlocked in the plate against bothend and side play.

What is claimed is: c

1. A surface bolt including a back plate, a bolt bar slidable endwise onthe plate, and a bow spring compressed between the plate and the bar andhaving a central, outturned horn means to prevent total withdrawal ofthe bar from the plate; said. spring interlocking with the plate againstside and end displacement.

2. A surface bolt structure including a plate having bar bridges, a boltbar slidable under the bridges and having a stop shoulder in its bottomface, and a bow spring compressed between the bar and the plate andhaving one end bent transversely to form a hooking part and its oppositeend having reverse bow; the plate having a narrow cross-aperture toreceive the hook part and having an aperture for the reverse bow end ofthe spring; whereby the ends of the spring are held against side play.3. A surface bolt including a back plate, a recessed bolt bar slidableendwise on the plate, and a bow-spring compressed between the plate andthe bar and having at its crown a horn to engage in the recess toprevent total removal of the bar.

SAMUEL GOLD.

